Maxim nexpaq / nexpaq_dev

Preliminary main mbed library for nexpaq development

libraries/tests/peripherals/C12832/TextDisplay.cpp@1:d96dbedaebdb, 2016-11-04 (annotated)

Committer:
nexpaq
Date:
Fri Nov 04 20:54:50 2016 +0000
Revision:
1:d96dbedaebdb
Parent:
0:6c56fb4bc5f0 
Removed extra directories for other platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 0:6c56fb4bc5f0 1 /* mbed TextDisplay Display Library Base Class
nexpaq 0:6c56fb4bc5f0 2 * Copyright (c) 2007-2009 sford
nexpaq 0:6c56fb4bc5f0 3 * Released under the MIT License: http://mbed.org/license/mit
nexpaq 0:6c56fb4bc5f0 4 */
nexpaq 0:6c56fb4bc5f0 5
nexpaq 0:6c56fb4bc5f0 6 #include "TextDisplay.h"
nexpaq 0:6c56fb4bc5f0 7
nexpaq 0:6c56fb4bc5f0 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
nexpaq 0:6c56fb4bc5f0 9 _row = 0;
nexpaq 0:6c56fb4bc5f0 10 _column = 0;
nexpaq 0:6c56fb4bc5f0 11 if (name == NULL) {
nexpaq 0:6c56fb4bc5f0 12 _path = NULL;
nexpaq 0:6c56fb4bc5f0 13 } else {
nexpaq 0:6c56fb4bc5f0 14 _path = new char[strlen(name) + 2];
nexpaq 0:6c56fb4bc5f0 15 sprintf(_path, "/%s", name);
nexpaq 0:6c56fb4bc5f0 16 }
nexpaq 0:6c56fb4bc5f0 17 }
nexpaq 0:6c56fb4bc5f0 18
nexpaq 0:6c56fb4bc5f0 19 int TextDisplay::_putc(int value) {
nexpaq 0:6c56fb4bc5f0 20 if(value == '\n') {
nexpaq 0:6c56fb4bc5f0 21 _column = 0;
nexpaq 0:6c56fb4bc5f0 22 _row++;
nexpaq 0:6c56fb4bc5f0 23 if(_row >= rows()) {
nexpaq 0:6c56fb4bc5f0 24 _row = 0;
nexpaq 0:6c56fb4bc5f0 25 }
nexpaq 0:6c56fb4bc5f0 26 } else {
nexpaq 0:6c56fb4bc5f0 27 character(_column, _row, value);
nexpaq 0:6c56fb4bc5f0 28 _column++;
nexpaq 0:6c56fb4bc5f0 29 if(_column >= columns()) {
nexpaq 0:6c56fb4bc5f0 30 _column = 0;
nexpaq 0:6c56fb4bc5f0 31 _row++;
nexpaq 0:6c56fb4bc5f0 32 if(_row >= rows()) {
nexpaq 0:6c56fb4bc5f0 33 _row = 0;
nexpaq 0:6c56fb4bc5f0 34 }
nexpaq 0:6c56fb4bc5f0 35 }
nexpaq 0:6c56fb4bc5f0 36 }
nexpaq 0:6c56fb4bc5f0 37 return value;
nexpaq 0:6c56fb4bc5f0 38 }
nexpaq 0:6c56fb4bc5f0 39
nexpaq 0:6c56fb4bc5f0 40 // crude cls implementation, should generally be overwritten in derived class
nexpaq 0:6c56fb4bc5f0 41 void TextDisplay::cls() {
nexpaq 0:6c56fb4bc5f0 42 locate(0, 0);
nexpaq 0:6c56fb4bc5f0 43 for(int i=0; i<columns()*rows(); i++) {
nexpaq 0:6c56fb4bc5f0 44 putc(' ');
nexpaq 0:6c56fb4bc5f0 45 }
nexpaq 0:6c56fb4bc5f0 46 }
nexpaq 0:6c56fb4bc5f0 47
nexpaq 0:6c56fb4bc5f0 48 void TextDisplay::locate(int column, int row) {
nexpaq 0:6c56fb4bc5f0 49 _column = column;
nexpaq 0:6c56fb4bc5f0 50 _row = row;
nexpaq 0:6c56fb4bc5f0 51 }
nexpaq 0:6c56fb4bc5f0 52
nexpaq 0:6c56fb4bc5f0 53 int TextDisplay::_getc() {
nexpaq 0:6c56fb4bc5f0 54 return -1;
nexpaq 0:6c56fb4bc5f0 55 }
nexpaq 0:6c56fb4bc5f0 56
nexpaq 0:6c56fb4bc5f0 57 void TextDisplay::foreground(uint16_t colour) {
nexpaq 0:6c56fb4bc5f0 58 _foreground = colour;
nexpaq 0:6c56fb4bc5f0 59 }
nexpaq 0:6c56fb4bc5f0 60
nexpaq 0:6c56fb4bc5f0 61 void TextDisplay::background(uint16_t colour) {
nexpaq 0:6c56fb4bc5f0 62 _background = colour;
nexpaq 0:6c56fb4bc5f0 63 }
nexpaq 0:6c56fb4bc5f0 64
nexpaq 0:6c56fb4bc5f0 65 bool TextDisplay::claim (FILE *stream) {
nexpaq 0:6c56fb4bc5f0 66 if ( _path == NULL) {
nexpaq 0:6c56fb4bc5f0 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
nexpaq 0:6c56fb4bc5f0 68 return false;
nexpaq 0:6c56fb4bc5f0 69 }
nexpaq 0:6c56fb4bc5f0 70 if (freopen(_path, "w", stream) == NULL) {
nexpaq 0:6c56fb4bc5f0 71 // Failed, should not happen
nexpaq 0:6c56fb4bc5f0 72 return false;
nexpaq 0:6c56fb4bc5f0 73 }
nexpaq 0:6c56fb4bc5f0 74 // make sure we use line buffering
nexpaq 0:6c56fb4bc5f0 75 setvbuf(stdout, NULL, _IOLBF, columns());
nexpaq 0:6c56fb4bc5f0 76 return true;
nexpaq 0:6c56fb4bc5f0 77 }